It sounds like you knit the wrong direction when you picked it up again. If so you'll need to undo the knitting back to thst point, the start knitting in the same direction. I'll try to illustrate:
L _____ _____ R
So if this is you circular needle, you wouls have been knittin stitches off the left needle on to the right. When you picked it up again, you may have flipped it around and kept going.
R _____ _____ L
This would mean that you were now reknitting the stitches on the R needle before you got to the end of the row.
I hope this makes some sense.